Water-heater.



m 9 n a I. d. e t n 6 t a P .nn LE ET BA E -.B FE T A W 2 U 6 6 0" N (Application filed May 18, 1900.!

(No Model.)

INVENTOR WITNESGES i W '6 and 7.

NIT STATES PATET Erica.

HENRY F. GABEL, OF PITTSBURG, PENNSYLVANIA.

WATER-HEATER.

SPECIFICATION forming part of Letters Patent No. 665,202, dated January 1, 1 901. Application filed May 18,1900. Serial No. 17,116. (No model.)

To all whom it may concern.-

Be it known that I, HENRY F. GABEL, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Water-Heaters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a sectional side elevation of my improved heater, and Fig. 2 is a cross-section on the line 11 II of Fig. 1.v

My invention relates to water-heaters, and its object is to obtain a cheap and simple heater in which the sediment will not become caked and hardened by the heat from the burner.

In the drawings, 2 represents a water-barrel or cylindrical reservoir set vertically and having its lower end portion tapering downwardly and provided with vertical ribs 3, which are gradually thickened upwardly, as shown in Fig. 1.

4 is an outer shell of larger diameter having an annular combustion-chamber 5 between it and the water-barrel and having end heads The lower head 7 of the outer shell is provided with an annular series of openings 8 for admission of air and with an upwardlyprojecting annular flange 9, engaging the ribs 3. g p

The water enters the lower end of the barrel through pipe 10, which is provided with a' lock-nut 11, and has screw-threaded engagement with a central hole in the lower head and with the nipple 12 at the lower end of the barrel. The mixer 13 leads into the chamber formed within the flange 9, and the gas is ignited as itissues above the flange, passing between it and the reduced lower part of the barrel. 1

The upper head 6 of the shell is provided with an outlet 14 for the products of combustion, and the upper nipple 15 of the barrel has a reduced portion provided with screwthreads engaging a central hole in the upper head and also provided with an outer locknut 16. When in operation, the gas and air mixture in the lower chamber flows up around the lower part of the barrel and being ignited near the upper ends of the spacing-ribs the annular sheet of flame surrounds the intermediate part of the barrel, heating the water therein. I

' The advantages of myinvention result from the application of the annular flame at a point above the lower end of the barrel, since the flame does not bake and cake the sediment in this lower end as it would do if applied to such end, and also from the'cheapness and simplicity of the device.

Any automatic regulator for the gas-supply may be applied to the heater, and many variations may be made in the form and arrangement of the barrel and the other parts without departing from my invent-ion.

I claim 1. In a water-heater a shell'containing a water-barrel of smaller diameter leaving an annular space between them, a closed chamber at the lower end of the water-barrel and forming with said barrel .1 burner having a flame-opening surrounding ihe intermediate part of the barrel, an air and gas mixer leading into said chamber, and holes inthe lower part of the shell for admission of .air into the combustion-chamber; su bsl'autially as described.

2. In awater-heater, a water-barrel having a reduced lower end portion, a flange surrounding such portion, with a space between them, and agas-su pply leading into the chamber within the flange; substantially as dethem, a gas and air chamber beneath the v lower end of the barrel and forming with said barrel a burner having an annular flameopening above the lower end of the barrel, and a mixer discharging into the gas and air chamber; substantially as described.

5. In a water-heater, a water-barrel constituting the entire heating-surface of the heater, a shell inclosing substantially the entire length of the barrel forming" an au- 1 ing a gas and air chamber with an annular nular combustion-chainbe'r between them, a flame-opening around the intermediate part chamber at the lower end of this barrel and of the barrel, the lower head of the shell hav :5 forming with it a burner arranged to direct ingair-openings leading into the annular 5 the flame around the barrel, and a Water-supcombustion-chamber between the barrel and ply pipe leading int-0 the lower end of this shell; substantially as described.

barrel; substantially as described. In testimony whereof I have hereunto set 6. In a Water-heater, an annular shell havmy hand. ing end heads, a Water-barrel Within the shell, HENRY F. GABEL. 10 and having its head secured to the shell-head, Witnesses:

a flange projecting from the lower shell-head H. M. CORWIN,

upwardly around the lower water-barrel form- L. A. CONNER, Jr. 

